Todays submission from the DOBERKEET Two Wheeled Archives is the 1973 DIRTBIKE Year of The Knobby calendar!
Complete with high quality (for 73) glossies of your favorite riders of the day!
Or, as is more likely, a bunch of guys you whipper snappers havent ever heard of!
Also, a quick editors touch on some of the lesser known historical milestones in the pursuit of motorcycle perfection.
Enjoy!